ESAB MEF 44N w/ LAI 400

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I have a problem with a wirefeeder from ESAB. It is working with LAI 400. I will describe the problem: The wire feeder decrease the speed during the welding. I saw that in its display. The display of power source decrease as well. I noted the speed (current) drops from 200 A to 130 A. But, arc welding does not extiguish and then the speed goes up. I saw if the input voltage drops when this happen. But, with naked eyes it did not happen. I checked also:
the cables connection;
internal Conduit of the torch;
the rolls;
The torch trigger.
Everything looked fine.
So, I would like to ask a help from you. If you can help I will appreciate that.

Quote:

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Originally Posted by Alex S.A

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I have a problem with a wirefeeder from ESAB. It is working with LAI 400. I will describe the problem: The wire feeder decrease the speed during the welding. I saw that in its display. The display of power source decrease as well. I noted the speed (current) drops from 200 A to 130 A. But, arc welding does not extiguish and then the speed goes up. I saw if the input voltage drops when this happen. But, with naked eyes it did not happen. I checked also:
the cables connection;
internal Conduit of the torch;
the rolls;
The torch trigger.
Everything looked fine.
So, I would like to ask a help from you. If you can help I will appreciate that.

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Sounds like it could be some sort of electronic board problem. I doubt you could easily figure that out, is there a service center you can bring the machine to?